Rollup merge of #125734 - petrochenkov:macinattr, r=wesleywiser

ast: Revert a breaking attribute visiting order change

Fixes https://github.com/rust-lang/rust/issues/124535
Fixes https://github.com/rust-lang/rust/issues/125201

compiler/rustc_ast/src/visit.rs

@@ -852,10 +852,10 @@ pub fn walk_assoc_item<'a, V: Visitor<'a>>(
     ctxt: AssocCtxt,
 ) -> V::Result {
     let &Item { id: _, span: _, ident, ref vis, ref attrs, ref kind, tokens: _ } = item;
-    walk_list!(visitor, visit_attribute, attrs);
     try_visit!(visitor.visit_vis(vis));
     try_visit!(visitor.visit_ident(ident));
     try_visit!(kind.walk(item, ctxt, visitor));
+    walk_list!(visitor, visit_attribute, attrs);
     V::Result::output()
 }
 

src/tools/clippy/tests/ui/tabs_in_doc_comments.stderr

@@ -1,35 +1,11 @@
-error: using tabs in doc comments is not recommended
-  --> tests/ui/tabs_in_doc_comments.rs:6:5
-   |
-LL | ///     - first        one
-   |     ^^^^ help: consider using four spaces per tab
-   |
-   = note: `-D clippy::tabs-in-doc-comments` implied by `-D warnings`
-   = help: to override `-D warnings` add `#[allow(clippy::tabs_in_doc_comments)]`
-
-error: using tabs in doc comments is not recommended
-  --> tests/ui/tabs_in_doc_comments.rs:6:13
-   |
-LL | ///     - first        one
-   |                ^^^^^^^^ help: consider using four spaces per tab
-
-error: using tabs in doc comments is not recommended
-  --> tests/ui/tabs_in_doc_comments.rs:7:5
-   |
-LL | ///     - second    one
-   |     ^^^^ help: consider using four spaces per tab
-
-error: using tabs in doc comments is not recommended
-  --> tests/ui/tabs_in_doc_comments.rs:7:14
-   |
-LL | ///     - second    one
-   |                 ^^^^ help: consider using four spaces per tab
-
 error: using tabs in doc comments is not recommended
   --> tests/ui/tabs_in_doc_comments.rs:10:9
    |
 LL |     ///     - First String:
    |         ^^^^ help: consider using four spaces per tab
+   |
+   = note: `-D clippy::tabs-in-doc-comments` implied by `-D warnings`
+   = help: to override `-D warnings` add `#[allow(clippy::tabs_in_doc_comments)]`
 
 error: using tabs in doc comments is not recommended
   --> tests/ui/tabs_in_doc_comments.rs:11:9
@@ -49,5 +25,29 @@ error: using tabs in doc comments is not recommended
 LL |     ///         - needs to be inside here
    |         ^^^^^^^^ help: consider using four spaces per tab
 
+error: using tabs in doc comments is not recommended
+  --> tests/ui/tabs_in_doc_comments.rs:6:5
+   |
+LL | ///     - first        one
+   |     ^^^^ help: consider using four spaces per tab
+
+error: using tabs in doc comments is not recommended
+  --> tests/ui/tabs_in_doc_comments.rs:6:13
+   |
+LL | ///     - first        one
+   |                ^^^^^^^^ help: consider using four spaces per tab
+
+error: using tabs in doc comments is not recommended
+  --> tests/ui/tabs_in_doc_comments.rs:7:5
+   |
+LL | ///     - second    one
+   |     ^^^^ help: consider using four spaces per tab
+
+error: using tabs in doc comments is not recommended
+  --> tests/ui/tabs_in_doc_comments.rs:7:14
+   |
+LL | ///     - second    one
+   |                 ^^^^ help: consider using four spaces per tab
+
 error: aborting due to 8 previous errors
 

tests/ui/attributes/key-value-expansion-scope.rs

@@ -0,0 +1,64 @@
+#![doc = in_root!()] // FIXME, this is a bug
+#![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+#![doc = in_mod_escape!()] // FIXME, this is a bug
+#![doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+
+#[doc = in_root!()] //~ ERROR cannot find macro `in_root` in this scope
+#[doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+#[doc = in_mod_escape!()] //~ ERROR cannot find macro `in_mod_escape` in this scope
+#[doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+fn before() {
+    #![doc = in_root!()] //~ ERROR cannot find macro `in_root` in this scope
+    #![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+    #![doc = in_mod_escape!()] //~ ERROR cannot find macro `in_mod_escape` in this scope
+    #![doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+}
+
+macro_rules! in_root { () => { "" } }
+
+mod macros_stay {
+    #![doc = in_mod!()] // FIXME, this is a bug
+
+    macro_rules! in_mod { () => { "" } }
+
+    #[doc = in_mod!()] // OK
+    fn f() {
+        #![doc = in_mod!()] // OK
+    }
+}
+
+#[macro_use]
+mod macros_escape {
+    #![doc = in_mod_escape!()] // FIXME, this is a bug
+
+    macro_rules! in_mod_escape { () => { "" } }
+
+    #[doc = in_mod_escape!()] // OK
+    fn f() {
+        #![doc = in_mod_escape!()] // OK
+    }
+}
+
+fn block() {
+    #![doc = in_block!()]  //~ ERROR cannot find macro `in_block` in this scope
+
+    macro_rules! in_block { () => { "" } }
+
+    #[doc = in_block!()] // OK
+    fn f() {
+        #![doc = in_block!()] // OK
+    }
+}
+
+#[doc = in_root!()] // OK
+#[doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+#[doc = in_mod_escape!()] // OK
+#[doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+fn after() {
+    #![doc = in_root!()] // OK
+    #![doc = in_mod!()] //~ ERROR cannot find macro `in_mod` in this scope
+    #![doc = in_mod_escape!()] // OK
+    #![doc = in_block!()] //~ ERROR cannot find macro `in_block` in this scope
+}
+
+fn main() {}

tests/ui/attributes/key-value-expansion-scope.stderr

@@ -0,0 +1,122 @@
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:2:10
+   |
+LL | #![doc = in_mod!()]
+   |          ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:4:10
+   |
+LL | #![doc = in_block!()]
+   |          ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_root` in this scope
+  --> $DIR/key-value-expansion-scope.rs:6:9
+   |
+LL | #[doc = in_root!()]
+   |         ^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:7:9
+   |
+LL | #[doc = in_mod!()]
+   |         ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod_escape` in this scope
+  --> $DIR/key-value-expansion-scope.rs:8:9
+   |
+LL | #[doc = in_mod_escape!()]
+   |         ^^^^^^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:9:9
+   |
+LL | #[doc = in_block!()]
+   |         ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_root` in this scope
+  --> $DIR/key-value-expansion-scope.rs:11:14
+   |
+LL |     #![doc = in_root!()]
+   |              ^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:12:14
+   |
+LL |     #![doc = in_mod!()]
+   |              ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod_escape` in this scope
+  --> $DIR/key-value-expansion-scope.rs:13:14
+   |
+LL |     #![doc = in_mod_escape!()]
+   |              ^^^^^^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:14:14
+   |
+LL |     #![doc = in_block!()]
+   |              ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:43:14
+   |
+LL |     #![doc = in_block!()]
+   |              ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:54:9
+   |
+LL | #[doc = in_mod!()]
+   |         ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:56:9
+   |
+LL | #[doc = in_block!()]
+   |         ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_mod` in this scope
+  --> $DIR/key-value-expansion-scope.rs:59:14
+   |
+LL |     #![doc = in_mod!()]
+   |              ^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: cannot find macro `in_block` in this scope
+  --> $DIR/key-value-expansion-scope.rs:61:14
+   |
+LL |     #![doc = in_block!()]
+   |              ^^^^^^^^
+   |
+   = help: have you added the `#[macro_use]` on the module/import?
+
+error: aborting due to 15 previous errors
+

tests/ui/feature-gates/feature-gate-optimize_attribute.stderr

@@ -1,13 +1,3 @@
-error[E0658]: the `#[optimize]` attribute is an experimental feature
-  --> $DIR/feature-gate-optimize_attribute.rs:4:1
-   |
-LL | #[optimize(size)]
-   | ^^^^^^^^^^^^^^^^^
-   |
-   = note: see issue #54882 <https://github.com/rust-lang/rust/issues/54882> for more information
-   = help: add `#![feature(optimize_attribute)]` to the crate attributes to enable
-   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
-
 error[E0658]: the `#[optimize]` attribute is an experimental feature
   --> $DIR/feature-gate-optimize_attribute.rs:7:1
    |
@@ -38,6 +28,16 @@ LL | #[optimize(banana)]
    = help: add `#![feature(optimize_attribute)]` to the crate attributes to enable
    = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
 
+error[E0658]: the `#[optimize]` attribute is an experimental feature
+  --> $DIR/feature-gate-optimize_attribute.rs:4:1
+   |
+LL | #[optimize(size)]
+   | ^^^^^^^^^^^^^^^^^
+   |
+   = note: see issue #54882 <https://github.com/rust-lang/rust/issues/54882> for more information
+   = help: add `#![feature(optimize_attribute)]` to the crate attributes to enable
+   = note: this compiler was built on YYYY-MM-DD; consider upgrading it if it is out of date
+
 error[E0658]: the `#[optimize]` attribute is an experimental feature
   --> $DIR/feature-gate-optimize_attribute.rs:2:1
    |

tests/ui/feature-gates/issue-43106-gating-of-stable.stderr

@@ -1,9 +1,3 @@
-error[E0734]: stability attributes may not be used outside of the standard library
-  --> $DIR/issue-43106-gating-of-stable.rs:10:1
-   |
-LL | #[stable()]
-   | ^^^^^^^^^^^
-
 error[E0734]: stability attributes may not be used outside of the standard library
   --> $DIR/issue-43106-gating-of-stable.rs:14:9
    |
@@ -34,6 +28,12 @@ error[E0734]: stability attributes may not be used outside of the standard libra
 LL |     #[stable()]
    |     ^^^^^^^^^^^
 
+error[E0734]: stability attributes may not be used outside of the standard library
+  --> $DIR/issue-43106-gating-of-stable.rs:10:1
+   |
+LL | #[stable()]
+   | ^^^^^^^^^^^
+
 error[E0734]: stability attributes may not be used outside of the standard library
   --> $DIR/issue-43106-gating-of-stable.rs:7:1
    |

tests/ui/feature-gates/issue-43106-gating-of-unstable.stderr

@@ -1,9 +1,3 @@
-error[E0734]: stability attributes may not be used outside of the standard library
-  --> $DIR/issue-43106-gating-of-unstable.rs:10:1
-   |
-LL | #[unstable()]
-   | ^^^^^^^^^^^^^
-
 error[E0734]: stability attributes may not be used outside of the standard library
   --> $DIR/issue-43106-gating-of-unstable.rs:14:9
    |
@@ -34,6 +28,12 @@ error[E0734]: stability attributes may not be used outside of the standard libra
 LL |     #[unstable()]
    |     ^^^^^^^^^^^^^
 
+error[E0734]: stability attributes may not be used outside of the standard library
+  --> $DIR/issue-43106-gating-of-unstable.rs:10:1
+   |
+LL | #[unstable()]
+   | ^^^^^^^^^^^^^
+
 error[E0734]: stability attributes may not be used outside of the standard library
   --> $DIR/issue-43106-gating-of-unstable.rs:7:1
    |